$\left(+25\right)-\left(-6\right)-\left(-22\right)+\left(+32\right)$

$2^x\infty2^3\infty2^1$

$\sin\left(x\right)^2-\cos\left(x\right)^2-\frac{1}{2}=0$

$-4x^2-9x^3-13x^2+3x^2;\:x=7;\:x=2$

$\int\frac{x-3}{\left(x^2+4\right)\left(x-1\right)}dx$

$n^2-6n-40=0$

$\int\frac{-8x+95}{3x^2}dx$